Operation Installation Manual Close Coupled Solar Hot Water Systems - Enduro SP200A and Excelsior EXT Collectors

Operation Installation Manual Close Coupled Solar Hot Water Systems - Enduro SP200A and Excelsior EXT Collectors This system shall be installed in accordance with: Manufacturer s Installation Instructions Current AS/NZS 3500 All applicable local rules and regulations including local OH&S requirements This system must be installed, commissioned and serviced by an Authorised Person. IMPORTANT The solar hot and solar cold pipes between the solar storage tank and the solar collector(s) must be copper tube. Fittings used to join these pipes must use metallic materials to acheive sealing. Plastic pipe and fittings must not be used as they are not suitable for the high temperatures and pressures that may occur. Failure of plastic pipe and/or fittings can lead to the release of high temperature water and can cause sever flooding and water damage. Not suitable as a pool or spa heater. All Rinnai gas products are A.G.A. certified. W169 SAI Global AS/NZS 2712 Lic No.1849 SAI Global Issue 10

TABLE OF CONTENTS Warnings and Important Information 4 Safety and Regulatory Information... 4 Scald Hazards... 5 Operation Principle... 6 Safety Devices... 7 Excessive Discharge from Safety Devices... 7 Gas Boosters... 8 Hydrogen Gas... 8 Water Temperature... 8 Turning Off the Water Heating System... 8 Turning On the Water Heating System... 8 Water Quality... 9 Draining and Filling the Water Heating System... 9 Maintenance and Regular Care... 9 Servicing and Repair... 9 Save a Service Call 10 Specifications 12 General... 12 Cylinder Weights... 12 System Dimensions - Stainless Steel Cylinders... 13 System Dimensions - Glass Lined Cylinders... 14 Solar Collectors... 15 Gas Boosters... 16 Installation - All Systems 17 Regulations and Occupation Health and Safety (OH&S)... 17 Location... 17 Water Pipes, Fittings and Insulation... 18 Water Supply... 18 Hot Water Delivery Temperature... 19 Valves and Fittings... 19 System Orientation and Inclination... 20 Roof Mounting Options... 21 Standard Installation... 24 Roof pitch greater than 30... 29 Framed Installations - Flat, Reverse and Side Pitch... 30 Framed Installations - Cyclone Frame... 30 Rinnai 2 CC OIM

TABLE OF CONTENTS 180 Litre Stainless Steel Cylinder with 1 Collector - IKS180CCT01C... 32 180 Litre Stainless Steel Cylinder with 2 Collectors - IKSUNICCT23C... 34 330 Litre Stainless Steel Cylinder with 2 Collectors - IKS330CCT02C... 36 330 Litre Stainless Steel Cylinder with 3 Collectors - IKSUNICCT23C... 38 200 Litre Glass Lined Cylinder with 1 Collector - IKV200CCT01C... 40 200 Litre Glass Lined Cylinder with 2 Collectors - IKVUNICCT23C... 42 330 Litre Glass Lined Cylinder with 2 Collectors - IKV330CCT02C... 44 330 Litre Glass Lined Cylinder with 3 Collectors - IKVUNICCT23C... 46 Installation - Gas Boosted Systems 48 Gas Booster Location... 48 Gas Supply... 48 Hot Water Delivery Temperature... 48 SMARTSTART... 48 System Using Rinnai SmartStart... 49 Gas Booster Clearances... 50 Installation Procedure... 51 Filling the System... 52 Pre Solar Heating Checks... 52 Solar Heating... 53 Finishing the Installation... 53 Draining Instructions... 53 Installation - Electric Boosted Systems 54 Installation Procedure... 54 Filling the System... 55 Pre Solar Heating Checks... 56 Solar Heating... 56 Finishing the Installation... 56 Draining Instructions... 56 Installation Record 57 Notes 58 Rinnai 3 CC OIM

WARNINGS WARNINGS AND IMPORTANT AND IMPORTANT INFORMATION INFORMATION SAFETY AND REGULATORY INFORMATION WARNING DO NOT operate this system before reading the manufacturer s instructions. This appliance must be installed, commissioned and serviced by an authorised person in accordance with all applicable local rules and regulations. Access covers of water heating system components will expose 240V wiring and MUST be removed by an authorised person. This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. For continued safety of this appliance it must be installed, operated and maintained in accordance with the manufacturer s instructions. Children should be supervised to ensure they DO NOT play with the appliance. Any power leads from the water heater system components MUST BE plugged into an external weatherproof electrical outlet. If the power supply cord of any water heating components is damaged, it MUST BE replaced by an authorised person in order to avoid a hazard, using genuine replacement parts available from Rinnai. Take care not to touch the power plugs with wet hands. Care should be taken not to touch the pipe work as it may be HOT! The pipes between the solar collectors and storage cylinder MUST BE copper or an equivalent metallic material specified by Rinnai. Plastic pipe is NOT suited to the water temperatures and pressures that may occur in the system. DO NOT place articles on or against this appliance. DO NOT store chemicals or flammable materials near this appliance. DO NOT operate with collectors or covers removed from this appliance. NEVER use a flammable spray such as hair spray, lacquer, paint, etc near this unit as this may cause a fire. NOTICE TO VICTORIAN CONSUMERS This appliance must be installed by a person licensed with the Victorian Building Authority. Only a licensed person will have insurance protecting their workmanship. So make sure you use a licensed person to install this appliance and ask for your Compliance Certificate. For Further information contact the Victorian Building Authority on 1300 815 127. Rinnai 4 CC OIM

WARNINGS AND IMPORTANT INFORMATION SCALD HAZARDS HOT WATER CAN CAUSE SCALDS. CHILDREN, DISABLED, ELDERLY AND THE INFIRM ARE AT THE HIGHEST RISK OF BEING SCALDED. FEEL WATER TEMPERATURE BEFORE BATHING OR SHOWERING. SCALDS FROM HOT WATER TAPS CAN RESULT IN SEVERE INJURIES TO YOUNG CHILDREN. SCALDS OCCUR WHEN CHILDREN ARE EXPOSED DIRECTLY TO HOT WATER WHEN THEY ARE PLACED INTO A BATH WHICH IS TOO HOT. ALWAYS... Test the temperature of the water with your elbow before placing your child in the bath, also carefully feel water before bathing or showering yourself. Supervise children whenever they are in the bathroom. Make sure that the hot water tap is turned off tightly. CONSIDER... Installing child proof tap covers or child resistant taps. Both approaches will prevent a small hand being able to turn on the tap. Installing tempering valves or thermostatic mixing valves which reduce the hot water temperatures delivered to the taps. Your local plumbing authority may already require that these be fitted. Contact your installer or local plumbing authority if in doubt. NEVER. Leave a toddler in the care of another child. They may not understand the need to have the water temperature set at a safe level. Rinnai 5 CC OIM

WARNINGS AND IMPORTANT INFORMATION OPERATION PRINCIPLE Close coupled systems are designed to have the solar collectors on the roof and the storage cylinder above the collectors, all mounted using available mounting brackets. Electric and gas boosted models are available. The system comprises of a hot water storage cylinder and solar collectors. Close coupled solar systems use the thermosyphon principle to circulate the water through the collectors and then to the storage cylinder without the need for a pump. Supplementary heating is provided if insufficient heat is available from sun (such as during cloudy or rainy weather or during winter months) either via an electric heating element located inside the storage cylinder or via a gas booster located external to the storage cylinder. The following diagrams illustrates the Close Coupled Solar Hot Water Systems set up for electric and gas boosting. STORAGE CYLINDER STORAGE CYLINDER COLLECTORS COLLECTORS COLD WATER SUPPLY GAS BOOSTER COLD WATER SUPPLY HOT WATER DELIVERY HOT WATER DELIVERY GAS SUPPLY Stainless Steel Gas Boosted Solar Hot Water System Stainless Steel Electric Solar Hot Water System STORAGE CYLINDER STORAGE CYLINDER COLLECTORS COLLECTORS COLD WATER SUPPLY GAS BOOSTER COLD WATER SUPPLY HOT WATER DELIVERY HOT WATER DELIVERY GAS SUPPLY Glass Lined Gas Boosted Solar Hot Water System Glass Lined Electric Solar Hot Water System Rinnai 6 CC OIM

SAFETY DEVICES WARNINGS AND IMPORTANT INFORMATION The water heating system is supplied with various safety devices including temperature sensors, overheat sensors and switches and a Pressure & Temperature Relief (PTR) valve. These devices must not be tampered with or removed. The water heating system must not be operated unless each of these devices is fitted and is in working order. WARNING DO NOT tamper with or remove safety devices. DO NOT operate the water heater unless all safety devices are fitted and in working order. DO NOT block or seal the PTR Valve and drain pipe. Pressure & Temperature Relief (PTR) Valve This valve is located near the top of the water heater and is essential for safe operation. It is normal for the valve to release a small quantity of water through the drain line during heating. However, continuous leakage of water from the valve and its drain line may indicate a problem with the water heater. Tw ist cap u n til w ater flow s from drain line L ift lever u n til w ater flow s from drain line (Low er lever gently!) WARNING Never block the outlet of the PTR valve or it s drain line for any reason. The easing gear must be operated at least every 6 months to remove lime deposits and verify that it is not blocked. Failure to do this may result in the water heater failing. If the valve does not discharge water when the easing gear lever is opened, or does not seal again when the easing gear is closed, attendance by an authorised person must be arranged without delay. The PTR valve is not serviceable. EXCESSIVE DISCHARGE FROM SAFETY DEVICES Pressure & Temperature Relief (PTR) Valve It is normal and desirable that this valve allows a small quantity of water to be discharged during the heating cycle. If it discharges more than a bucket of water during a 24 hour period or discharges continuously there may be another problem. If the valve dribbles continuously, try easing the valve gear for a few seconds as described above. This may dislodge any foreign matter and alleviate the problem. If the valve discharges at high flows, especially at night, it may be as a result of the water pressure exceeding the design pressure of the water heater. Ask your installer to fit a Pressure Limiting Valve (PLV). WARNING NEVER replace the PTR valve with one which has a higher pressure rating than is specified for your water heater. Expansion Control Valve (ECV) - if fitted It is normal and desirable that this valve allows a small quantity of water to be discharged during the heating cycle. If it discharges more than a bucket of water during a 24 hour period or discharges continuously there may be another problem. If the valve leaks continuously, try easing the valve gear for a few seconds. This may dislodge any foreign matter and alleviate the problem. If this does not alleviate the problem contact Rinnai. Operate the easing gear regularly to remove any lime deposits and to verify that it is not blocked. Rinnai 7 CC OIM

WARNINGS AND IMPORTANT INFORMATION GAS BOOSTERS Do not touch the flue outlet or do not insert any objects into the flue outlet. Keep flammable materials, spray cans, fuel containers, trees, shrubs and pool chemicals etc, well clear of the flue outlet. Do not use the gas types other than those designated on the data plate. For example, do not use Propane/ Butane gas mixtures on appliances marked Propane Gas. Do not use Propane Gas on appliances marked as Natural Gas and vice versa. HYDROGEN GAS In the case of systems using a vitreous enamel lined cylinder, if the hot water unit is not used for two weeks or more, a quantity of hydrogen gas, which is highly flammable, may accumulate in the water heater. To dissipate this safely, it is recommended that a non electrically operated hot tap be turned on for two minutes at a sink, basin, or bath, but not a dishwasher or other appliance. During this procedure there must be no smoking, open flame or any electrical appliance operating nearby. If hydrogen is discharged through the tap, it will probably make a sound like air escaping. WATER TEMPERATURE The water gets heated by the solar energy contributed from the sun and heats the water until the water at the base of the storage cylinder reaches approximately 65 C. At this time water at the hot outlet can be up to 88 C. Continued heating is prevented by the No Load protection, a Thermo-arrestor (TA) valve that prevents water passing from the cylinder to the collectors. During periods of low solar gain, supplementary heating occurs. IMPORTANT To meet Australian regulatory requirements, supplementary heating must be operational. TURNING OFF THE WATER HEATING SYSTEM If you plan to be away for only a few nights, we suggest you leave the water heating system switched on. If it is necessary to switch off the water heater, do so as outlined below: Electric Boosted Systems Switch off the electrical supply to the supplementary heating element. The switch is usually marked and located in the electricity meter box of the dwelling. Gas Boosted systems Switch off the electric supply to the gas booster. TURNING ON THE WATER HEATING SYSTEM Electric Boosted system Switch on the electric supply to the supplementary heating element(s). The switch is usually marked and located in the electricity meter box of the dwelling. Gas Boosted systems Switch on the electrical supply to the gas booster. Rinnai 8 CC OIM

WATER QUALITY The water quality of most public supplies is suitable for the water heating system. The water quality from bore wells is generally unsuitable for the water heating system. Refer to the separate warranty document for water quality parameters and how they affect the warranty conditions. If in doubt about the water quality, have it checked against the parameters listed in the warranty document. The system is not suitable as a pool or spa heater. DRAINING AND FILLING THE WATER HEATING SYSTEM Draining or filling normally occur only during installation or servicing and must be carried out by an authorised person. MAINTENANCE AND REGULAR CARE Operate the easing gear of the PTR as described in the section Safety Devices on page 7. SERVICING AND REPAIR Our Servicing network personnel are fully trained and equipped to give the best service on your appliance. If your appliance needs service, ring one of the service contact numbers on the back of this booklet. It is recommended that the system be serviced at least every 5 years. WARNINGS AND IMPORTANT INFORMATION The pressure and temperature relief valve and expansion control valve must be checked for performance or replaced by an authorised person at intervals not exceeding 5 years or more frequently in areas where the water is classified as scaling water (refer to the supplied warranty booklet). It is recommended that the sacrificial anode fitted to Glass Lined cylinders be inspected every 5 years or more frequently in areas where there is a high incidence of water deposits. This does not apply to Stainless Steel cylinders. Anodes suited to hard and soft water, are available from Rinnai. If the electric conduit, power supply cord or plug to the water heater is damaged, they must be replaced by an authorised person in order to avoid a hazard. The power supply cord and plug (if fitted) must be replaced by a genuine replacement part available from Rinnai. Rinnai 9 CC OIM

SAVE A SERVICE CALL Before contacting Rinnai for service, please follow the fault finding guide. If the problem persists or this information doesn t answer your questions, contact Rinnai on the phone number on the back of this manual Service call outs attending to any condition or fault that is not related to Rinnai product or components may be chargeable. INSUFFICIENT OR NO HOT WATER Excessive hot water consumption Incorrect solar system size Temperature and pressure relief valve / expansion control valve discharging water continuously Booster heating not operating for electric systems Gas booster not operating or insufficient gas supply for gas boosted heating system Booster thermostat settings NO WATER FROM THE HOT TAP Restriction in the hot tap or failure of the cold water supply to the heater Electric Boosted Systems: Often people are surprised at the amount of hot water used, especially when showering. If the amount of hot water used during the day exceeds the storage capacity of the cylinder, it is likely that there will be insufficient hot water. Gas Boosted Systems: Insufficient flow may occur if multiple outlets are in use at the same time and exceed the rated flow capacity of the gas booster. If so, reduce the number of outlets in use. Consider discussing with your installer, fitting water saving fixtures and/or flow control or pressure limiting valves to reduce consumption. The system may not have been adequately sized to suit the household. PTR Valves & ECV Valves (if fitted) It is normal and desirable that these valves allows a small quantity of water to be discharged during the heating cycle. If they discharges more than a standard bucket of water during a 24 hour period or discharges continuously there may be another problem If water continuously dribbles from the valve, try easing the valve gear for a few seconds as described in the section Maintenance and Regular Care on page 9. This may dislodge any foreign matter and alleviate the problem. If the valve discharges at high flows, contact your installer or Rinnai to discuss. Electric boosted Systems: Check to ensure the electric isolating switch(es) at the switchboard (usually marked Hot water or water heater ) is switched ON. Check to ensure that the electric fuses for hot water at the switchboard are intact If running on Off-Peak, discuss boosting times with electricity supplier. Booster heating not operating or insufficient gas supply for gas boosted heating system Gas Boosted Systems: Check to ensure the power cord of the gas booster is plugged in and switched on. Check gas is available and the isolation valve is opened Close the hot tap and wait for 10 seconds and open it again. The hot tap must be opened enough to ensure that the flow rate is sufficient for the gas booster to light. Check if there is gas supply to other appliances in the rest of the house Electric Boosted Systems: Check the temperature of hot water delivered with a thermometer placed under the closest outlet (usually the kitchen sink) on a non-tempered hot water line This test should be done early in the morning after overnight electrical boosting before any hot water is used. The temperature of the water delivered should be at least 55 C (allowing for heat losses in pipe work) If this is not the case or the temperature may need to be increased. Contact your installer or Rinnai to discuss adjusting the thermostat. Check for water flow at the other hot taps and that the cold water isolation valve is fully open Rinnai 10 CC OIM

SAVE A SERVICE CALL HIGH ELECTRICITY OR GAS BILL Hot water usage patterns High electricity cost Temperature and pressure relief valve / expansion control valve discharging water continuously Lack of solar gain CONDENSATION IN COLLECTORS Condensation in solar collectors NOISY SOLAR COLLECTORS Noise from solar collectors WATER HAMMER Hot and cold water plumbing in the premises Electric Boosted Systems: If using an off peak (overnight) boosted electrical system, the time of use of the water may affect whether heating is done by electric element or solar energy. This is because both solar heated water and electrically heated water are stored in the same cylinder. As the element is in the middle of the tank, half the tank can be heated each night by the booster element. If the bulk of hot water is used in the morning, there will be cold water in the cylinder for the sun to heat during the day leading to lower electricity usage. If the bulk of the hot water is used in the evening, the electric element will reheat the water overnight. In the morning there will only be half a cylinder of cold water for the sun to heat. Consider changing your usage pattern to optimise solar energy usage. Electric Boosted Systems: The electricity tariff will determine the running costs of the system. Contact the electricity supplier to confirm what these tariffs are. See entry under Insufficient or No Hot Water Reduced sunlight due to overcast weather in summer or low solar contribution in winter will result in an increased dependence on electricity or gas boosting. Higher electricity or gas bills under these conditions, especially in winter, are normal. If the solar collectors are shaded by trees or other objects, or the glass is dirty, the effectiveness of the collectors is greatly reduced. Arrange for trimming of the trees or relocation of the solar collectors if the obstruction is permanent. Arrange for cleaning of the collector glass Solar collectors incorrectly positioned will also severely affect the solar gain. Check that positioning and alignment of solar collectors is in accordance with the section System Orientation and Inclination on page 20. There is a small amount of ventilation between atmosphere and the internals of the solar collector to ensure efficient operation. Under certain weather conditions, water vapour naturally present in the air may condense on the inside surface of the collector glass. This does not affect the performance of the system. If you are concerned contact Rinnai to discuss. Occasionally on days of high solar gain, the water temperature in the collector may become very high. The noise may be similar to a boiling kettle, or an expanding contracting metallic sound. The collector is designed to withstand these conditions, and no action is needed, unless it is extreme. Contact Rinnai to discuss if you have any concerns. Contact your installer or a plumber to discuss checking the clipping of hot and cold water pipe work and install a pressure limiting valve or water hammer arrestor as required Rinnai 11 CC OIM

SPECIFICATIONS GENERAL Close Coupled hot water systems are specified according to the cylinder capacity, number of solar collectors and boost type and capacity. Boost capacity for gas boosted system depends on the gas booster model selected. Boost capacity for electrically boosted systems depends on the power rating of the electric heating element. Specifications for the various components are shown below. Solar flow and return connection: PTR valve connection: Cold inlet connection: Hot outlet connection: PTR valve setting Rating of PTR Valve supplied Expansion Control Valve (ECV) setting (supplied by installer if required) Max supply pressure with ECV Max supply pressure without ECV Pressure limiting valve rating (supplied by installer if required) Electric element power rating Rp ¾ Rp ¾ Rp ¾ Rp ¾ 850 kpa 10 kw 700 kpa 500 kpa 700 kpa 500 kpa 2.4 or 3.6 kw standard 1.8 or 4.8 kw available for stainless steel cylinders 4.8 kw available for glass lined cylinders CYLINDER WEIGHTS Mass of Cylinder (empty) Mass of Cylinder (filled) Stainless steel 180 litre 40 kg 225 kg Stainless steel 330 litre 80 kg 412 kg Glass lined 200 litre 77 kg 277 kg Glass lined 330 litre 104 kg 434 kg Rinnai 12 CC OIM

SPECIFICATIONS SYSTEM DIMENSIONS - STAINLESS STEEL CYLINDERS 1555 1200 2370 1200 1025 (1050) 2120 (2165) 2465 2090 3495 2090 2120 (2165) 3215 (3290) 600 610 Dimensions shown for Enduro (SP200A) Collectors 1940 (1965) 2535 (2560) Dimensions in brackets ( ) for Excelsior (EXT) Collectors Rinnai 13 CC OIM

SPECIFICATIONS SYSTEM DIMENSIONS - GLASS LINED CYLINDERS 1415 2280 1140 1140 1025 (1050) 2120 (2170) 2250 3380 1735 1735 2120 (2170) 3215 (3290) 685 1940 (1965) 2605 (2605) 695 Dimensions shown for Enduro (SP200A) Collectors Dimensions in brackets ( ) for Excelsior (EXT) Collectors Rinnai 14 CC OIM

SPECIFICATIONS SOLAR COLLECTORS ENDURO - SP200A EXCELSIOR - EXT Type Flat plate Flat plate Waterways Copper Copper Absorber Aluminium Copper Selective Surface High Performance Sputtered Titanium Oxide Maximum Operating Pressure Casing Material Overall Dimensions (L x W x H) (mm) 850 kpa Aluminium 1940 x 1025 x 80 1964 x 1047 x 81 Weight empty (STD/FTC) (kg). 33 / 35 35 / 38 Water volume (litres) 1.3 1.5 Number risers Potential Solar Output at PTR relief conditions (kw) 1.25 kw Frost Protection The Rinnai solar hot water warranty booklet specifies the locations and conditions that apply for flat plate collectors to be warranted against frost damage. In locations where the warranty booklet specifies that frost valves must be used, they must be fitted for warranty to apply. If frost valves are missing you must obtain them and fit them. Failure to fit frost valves will void any warranty against frost damage. For full warranty terms, conditions and exclusions refer to the Rinnai warranty booklet for solar hot water. This booklet is available at www.rinnai.com.au. Rinnai 15 CC OIM

SPECIFICATIONS GAS BOOSTERS Model Name S20 S26 S26i * S32 * Boost capacity at 20 C rise (l/min) 20 26 32 37 Boost capacity at 25 C rise (l/min) 16 24 26 32 Maximum rated flow (l/min) 20 26 32 37 Minimum water supply pressure for maximum rated flow (kpa) 1 120 200 140 180 Frost protection Yes Gas consumption maximum (MJ/h) 125 188 195 250 Gas consumption minimum (MJ/h) 18 23 16 21 Hot water delivery temperature ( C) 2 70 Dimensions - height x width x depth (mm) 530 x 350 x 194 600 x 470 x 244 Weight (kg) 15 21 21 29 1 Units will operate at lower pressures but the rated flow will not be achieved. 2 Gas boosters for Solar hot water applications must be set by Rinnai to deliver a minimum temperature of 70 C. Solar Gas boosters will be marked as Solar. Units not marked Solar MUST NOT be used, and will invalidate warranty. See warranty booklet for more details. * These models are made to order. Rinnai 16 CC OIM

INSTALLATION - ALL SYSTEMS REGULATIONS AND OCCUPATION HEALTH AND SAFETY (OH&S) WARNING Installation and commissioning must be performed by authorised persons. Solar systems must be installed in accordance with these instructions and all regulatory requirements which exist in your area including those in relation to manual lifting, working at heights and on roofs. Applicable publications and regulations may include: AS/NZS 5601 Gas Installations AS/NZS 3500 National Plumbing and Drainage AS/NZS 3000 Wiring rules Building Codes of Australia (BCA) Local Occupational Health and Safety (OH&S) regulations This appliance is not suitable for use as a domestic spa pool or swimming pool heater. Solar collectors and cylinders are heavy and bulky items and are usually positioned on the roofs of buildings. Australian State and Territories have a principal Occupational Health and Safety (OH&S) Act which contains requirements relating to the handling of large, bulky or awkward items and the prevention of falls from elevated surfaces. Persons installing solar collectors must be aware of their responsibilities and be adequately trained and qualified, in accordance with local OH&S requirements. LOCATION System Location WARNING These systems are only suitable for use on buildings up to 10 metres tall. Select suitable areas of roof on which to install the solar collectors and cylinder. It is essential that the roof structure is suitable for the solar collector/cylinder combination and can support the weight of these items when full of water. It is the installers responsibility to ensure the roof can safely support the system and to visually check the roof, and if there is any damage that requires attention (such as cracked tiles etc.), to inform the owner. If this affects the safe installation of any part of the system, installation should not proceed until the damage has been rectified. Collectors should be positioned for optimum solar benefit. Refer to the section System Orientation and Inclination on page 20 for more information. All system components must be in an accessible location. Sufficient clearances shall allow access to, and removal of, all serviceable parts. Ensure the PTR valve, drain lines, thermostats and elements have sufficient clearances and are accessible for service and removal. The information on any data plates must also be readable. All electrically boosted solar hot water heating elements must be connected to an independent, fused, AC 240V 50 Hz power supply with an isolating switch installed at the switch board. Gas Booster Location (where applicable) The S20, S26 and S32 gas boosters are designed for outdoor installation only. As such, they must be located in an above ground open air situation with natural ventilation, without stagnant areas, where gas leakage & products of combustion are rapidly dispersed by wind and natural convection. If an internal model which has been converted to a solar gas booster follow information supplied with the unit for location, mounting and flueing requirements. Rinnai 17 CC OIM

INSTALLATION - ALL SYSTEMS WATER PIPES, FITTINGS AND INSULATION IMPORTANT The solar hot and solar cold pipes between the solar storage tank and solar collector(s) must be copper tube. Fittings used to join these pipes must use metallic materials to achieve sealing. Plastic pipe and fittings must not be used as they are not suitable for the high temperatures and pressures that may occur. Failure of plastic pipe and/or fittings can lead to the release of high temperature water and can cause severe flooding and water damage. All hot water pipework should be insulated with sealed polyethylene foamed or equivalent insulation to optimise performance and energy efficiency, and to protect against frost damage. Such insulation may also be mandatory under local regulations. Rinnai recommend insulation to achieve at least the R value shown in the following table. CER Zone 4 Location of Installation Areas defined as B or C in the latest version of the Rinnai Solar Hot Water Warranty Booklet. Any other area prone to frost conditions. Hot pipe between tank and collectors and Pipe between tank and gas booster R = 0.6 K.m²/W Cold pipe between tank and collectors. (the side with the TA valve) R = 0.6 K.m²/W All other areas R = 0.6 K.m²/W insulation not required With the exception of solar collector flow and return pipes, water pipe sizing should be performed in accordance with AS/NZS 3500. All supplied insulation materials must be fitted as shown to minimise heat losses. In frost prone areas this insulation will also protect against frost damage. If frost valves are fitted they must remain free of any insulation materials. Frost valves must be exposed directly to ambient air conditions to ensure correct operation. WATER SUPPLY The maximum water pressures for the various systems are listed on page 12. Approved pressure limiting valves may be required if the Maximum rated water supply pressures are exceeded. For gas boosted systems to achieve the rated flow through the outlet of the continuous flow water heater, the minimum water supply pressures must be supplied. The systems will operate at lower pressures but the rated flow will not be achieved. Water chemistry and impurity limits are detailed in the separate warranty booklet. Most metropolitan water supplies fall within these requirements. If you are unsure about water quality, contact your water authority. If sludge or foreign matter is present in the water supply, a suitable filter should be incorporated in the water supply to the storage cylinder. Rinnai 18 CC OIM

INSTALLATION - ALL SYSTEMS HOT WATER DELIVERY TEMPERATURE Local regulations and/or the requirements of AS/NZS 3500.4 must be considered regarding the temperature limitations of hot water supplied to areas used primarily for personal hygiene. The temperature of water to these areas is limited to 45 C for early childhood centres, primary and secondary schools and nursing homes or similar facilities for young, aged, sick or people with disabilities and 50 C for all other buildings. To comply with these requirements, a temperature limiting device, such as a thermostatic mixing or tempering valve, will be required on all solar hot water systems as detailed below. COLD WATER SUPPLY LAUNDRY BATHROOM LAUNDRY BATHROOM COLD WATER SUPPLY HEATED WATER FROM STORAGE CYLINDER KITCHEN ENSUITE HEATED WATER FROM STORAGE CYLINDER GAS SUPPLY KITCHEN ENSUITE TEMPERATURE LIMITING DEVICE TEMPERATURE LIMITING DEVICE Tempered Gas Hot Water System Tempered Electric Hot Water System VALVES AND FITTINGS The following valves and fittings are supplied with your solar hot water system: A combined pressure and temperature (PTR) relief valve, capacity 10 kw. Relief valve pressure settings vary with models. This valve is fitted at the top of the storage cylinder. The PTR valve is a safety device and it is mandatory that it is fitted by the installer in all installations. Thermo-Arrestor (TA) valve. This valve is fitted on the inlet pipe to the solar collectors. Its function is to control the flow of water from the tank to the collectors and stop the flow of water when the tank has reached the required temperature. For gas boosted systems, elbow connections for the hot, cold and gas supply are fitted at the bottom of the gas booster. Fittings as shown on pages 32 to 47 The following valves & fittings are to be supplied by the installer: A cold water expansion control valve (ECV). An ECV must be fitted in Western Australia and South Australia to the cold water supply to the storage cylinder to comply with local regulations. An ECV is recommended in all other geographical areas where the water supply has a tendency to cause scaling. This will reduce hot water discharge from the pressure and temperature relief (PTR) valve which minimises wear on this valve. A stop cock, non return valve and line strainer. Combination valves incorporating two or more of these functions (such as Trio valves) are suitable. These are fitted to the cold water supply to the storage cylinder by the installer. Cold water supply and hot water discharge pipework to and from the storage cylinder. An isolating valve and connection union for the gas supply to the gas booster. An approved pressure limiting valve (supplied with some systems) is required if the maximum rated water supply pressure on page 12 is exceeded. Rinnai 19 CC OIM

INSTALLATION - ALL SYSTEMS SYSTEM ORIENTATION AND INCLINATION The performance of any solar hot water system is determined by the way the system is installed. For Australian installations, solar collectors should face the equator (True North) for optimum performance. Installing solar collectors facing up to 45 degrees away from North (between North-East and North-West) will reduce efficiency by approximately 5%. For Australian installations, the inclination of solar collectors should be the same as the latitude of the site for optimum performance. Inclinations within 20 degrees of the latitude of the site will reduce efficiency by approximately 5%. Most roofs in Australia have a slope of between 20 and 25 and provide an appropriately angled mounting surface. Installers must ensure they comply with relevant local regulations regarding solar collector inclination and orientation. City Latitude City Latitude City Latitude Adelaide 35 S Canberra 35 S Melbourne 38 S Albany 35 S Darwin 12 S Perth 32 S Alice Springs 24 S Dubbo 32 S Port Hedland 20 S Brisbane 27 S Geraldton 28 S Rockhampton 24 S Broken Hill 31 S Hobart 42 S Sydney 34 S Cairns 17 S Mildura 34 S Townsville 19 S Latitudes of Australian Cities Rinnai 20 CC OIM

INSTALLATION - ALL SYSTEMS ROOF MOUNTING OPTIONS WARNING These systems are not suitable for use on roofs over 10 m high. For roofs with a slope of 10 or less a flat roof frame must be used. Rinnai do not recommend installing Close Coupled systems on roofs with a pitch greater than 30. An additional strap should be used to prevent the cylinder from tipping over if a system is installed in this manner. Refer page 29. It is normal to mount the solar collectors down close to the gutter. Roof construction must be checked to ensure that the roof timbers are capable of supporting the additional load. (Refer to AS 3500.4 Appendix H). For tiled roof installations. Check for cracked or damaged tiles in the area of proposed installation. Replace any faulty tiles. If spare tiles are not available, swap damaged tiles with good ones from along the gutter line. Standard Installation Installation details are in this manual. N Flat Roof Frame Additional information is provided in the roof frame manual provided with the frame. Reverse Pitch Frame Additional information is provided in the roof frame manual provided with the frame. N Side Pitch Frame Additional information is provided in the roof frame manual provided with the frame. N N Cyclone Frame Additional Information is provided in the Cyclone frame manual provided with the cyclone frame N Rinnai 21 CC OIM

INSTALLATION - ALL SYSTEMS Mounting Location Suitability The following table indicates which installation locations are suitable for different roof mounting options for Rinnai close coupled solar hot water systems. Wind Region Roof Area (see page 23 for explanation) Area 1 Region A Area 2 Area 3 Area 1 Region B Area 2 Area 3 Area 1 Region C Areas 2 & 3 Pitched roof ü ü ü ü ü û û û û Cyclone frame ü ü ü ü ü û ü* û û Flat roof frame ü ü û ü û û û û û Reverse or side pitch frame Region D Areas 1,2 & 3 ü û û û û û û û û * Enduro (SP200A) collectors only. Only systems defined in the Cyclone Frame Installation Manual. ü Suitable û Not Suitable Wind Region Australia has been categorised into 4 wind regions. Each region has varying wind load parameters such as wind speed and wind direction multipliers. The diagram below illustrates the region locations. For more information on how to classify site specific wind loading parameters see AS/NZS 1170.2 - Wind Actions, or consult a certified structural engineer. 150km 100km 50km 20 25 25 27 30 30 Region A Region B Region C Region D Region A Region B Region C Region D Callytharra Springs Gascoyne Junction Green Head Kununurra Lord Howe Island Morawa Toowoomba Wittanoom Bourke Adelaide River Atherton Biloela Brisbane Christmas Island Collinsville Corindi Geraldton Ivanhoe Kyogle Marble Bar Mullewa Norfolk Island Torres Strait Islands Wyndham Borroloola Broome Bundaberg Burketown Cairns Cocos Islands Darwin Derby Karumba Mackay Mareeba Millstream Moreton Nhulunbuy Normanton Rockhampton Townsville Carnarvon Exmouth Karratha Onslow Port Hedland Indicative selection of towns in Regions A,B,C &D Rinnai 22 CC OIM

3.8 (h) Roof Area INSTALLATION - ALL SYSTEMS As per AS/NZS 1170.2, domestic pitched and flat roof areas are classified into working areas. The diagram below illustrate these areas. A/2 A A = minimum of 0.2 x B, 0.2 x D and 1 x h A Area 1 30 MAX Area 2 Area 3 h = Average height of building Area 1 - Internal of roof. Area 2 - Intermediate area, wind pressures increased by 1.5 times. Area 3 - Roof edge including corners, wind pressures increased by 3 times. For installations in roof area 3, a minimum of 0.5m from the edge of the roof is recommended. D B Height limit for all installations is 10 metres. For more information on how to classify specific roof area installations, or for building heights exceeding 10 metres see AS/NZS1170.2 or consult a certified structural engineer. Some examples are shown below. Example 1 Example 2 1.21 (A/2) Area 2 Area 3 Area 1 2.42 (A) 1.21 (A/2) Area 3 Area 2 Area 1 3.8 (h) 12.1 (D) 20.3 (B) 2.42 (A) 1.21 (A/2) 2.42 (A) 12.1 (D) 20.3 (B) In both examples : A = min of 0.2 x 20.3 = 4.06 0.2 x 12.1 = 2.42 1 x 3.8 = 3.8 è A = 2.42 A/2 = 1.21 m Rinnai 23 CC OIM

INSTALLATION - ALL SYSTEMS STANDARD INSTALLATION WARNING This type of installation is not suitable for use on roofs over 10 m high. This type of installation is not suitable for use in cyclonic areas. Collector Rail Pre Assembly Assemble the collector rail components as shown. Only loosely attach the collector retainers to the rails. Details of component quantities are shown in the tables on page 32 to 47. COLLECTOR SUPPORT STRAPS MOUNTING RAIL COLLECTOR RETAINERS M6 BOLT, NUT &WASHER MOUNTING RAIL COLLECTOR SUPPORT STRAPS COLLECTOR RETAINERS M6 BOLT, NUT &WASHER Rinnai 24 CC OIM

INSTALLATION - ALL SYSTEMS Fastening Collectors to a Tiled Roof WARNING This type of installation is not suitable for use on roofs over 10 m high. This type of installation is not suitable for use in cyclonic areas. Attach the collector mounting straps to the rafter or truss under the tiles. Tiles removed Nail strap to rafter Place the collector(s) onto the roof above the lower rail. If more than one collector is being installed then join them together using the compression fittings supplied. Push down on the collector retainers to clamp the collector and tighten the nuts. Position the upper collector rail above the collectors. Push down on the retainers to clamp the collector and tighten the nuts. Attach the collector mounting straps to the rafter or truss under the tiles. Tiles removed Nail strap to rafter Replace the tiles and ensure the collector is secure. Rinnai 25 CC OIM

INSTALLATION - ALL SYSTEMS Fastening Collectors to a Metal Roof WARNING This type of installation is not suitable for use on roofs over 10 m high. This type of installation is not suitable for use in cyclonic areas. Position the lower collector mounting rail assembly so that the rail is over the roof purlin. Drill through the roof iron and purlin using the holes in the rail as a guide. Apply some silicone sealant down the holes to ensure no water leakage. Bolt the rail to the roof purlin using a suitable fastener. Position the collector(s) onto the roof above the lower rail. If more than one collector is being installed, join them together using the compression fittings supplied. Push down on the collector retainers to clamp the collector and tighten the nuts. Place the upper collector mounting rail above the collectors. Push down on the collector retainers to clamp the collector and tighten the nuts. Drill through the roof iron and purlin using the upper mounting rail as a guide. Apply some silicone sealant down the holes to ensure no water leakage and secure with suitable fasteners. Alternatively the rail can be attached to the roof using the collector mounting straps. Rinnai 26 CC OIM

Attaching mounting rail to cylinder on stainless steel cylinders Depending on the packaging, either one or two rails are attached to the cylinder. INSTALLATION - ALL SYSTEMS The extra rail and fastenings are packed with the cylinder. They are screwed into the rail mounting holes in the cylinder. Attach the rail using the bolts, washers and spring washers in the order shown. Ensure the feet on the rails face outwards Rail Washer Ensure that the bolt is tightened sufficiently to flatten the spring washer. This ensures that the bolt is adequately tightened. Bolt Spring Washer Once the rail is attached and suitably tightened, continue the cylinder installation as shown on the next page. Rinnai 27 CC OIM

INSTALLATION - ALL SYSTEMS Fastening Cylinder to Roof Lift the storage cylinder onto the roof and locate it above the collector bank. The cylinder s position should be as central as possible to the collector bank. The lower rail must be on a load bearing surface. Slide the cylinder support strap into the slots located in the uppermost cylinder support bracket so that the strap is in line with a suitable fastening position Tiled Roof Remove tiles one row up from the storage cylinder. Apply tension to the straps and attach them to the rafters using a suitable fastener. TILE REMOVED Replace the tiles FASTEN STRAP TO RAFTER LOWER CYLINDER RAIL MUST BE ON A LOAD BEARING SURFACE Metal Roof Bolt the lower support rail to the roof using a suitable fastener. Apply tension to the cylinder support straps and attach them to the rafters using a suitable fastener. Seal any holes in roof using a suitable sealant to ensure roof is water tight. BOLT STRAP TO ROOF USING A SUITABLE FASTENER LOWER CYLINDER RAIL MUST BE ON A LOAD BEARING SURFACE BOLT RAIL TO ROOF USING A SUITABLE FASTENER Rinnai 28 CC OIM

ROOF PITCH GREATER THAN 30 INSTALLATION - ALL SYSTEMS In situations where a Close Coupled System is installed onto a roof with a pitch of 30 or greater, an additional strap must be used to prevent the cylinder tipping over. Builders strapping available from hardware stores is suitable for this. The strapping is attached through the slots in the front cylinder rail, goes over the tank and is then fastened to the roof behind the cylinder. Tiled Roof Metal Roof Securely fasten strap to roof using a suitable fastener Securely fasten strap to roof using a suitable fastener Attach straps through slot in cylinder rail. Attach strap through slot in cylinder rail. Ensure straps are on main section of tank as plastic endcaps are not loadbearing Securely fasten straps to roof using a suitable fastener Ensure straps are on main section of tank as plastic endcaps are not loadbearing Securely fasten strap using a suitable fastener Rinnai 29 CC OIM

INSTALLATION - ALL SYSTEMS FRAMED INSTALLATIONS - FLAT, REVERSE AND SIDE PITCH WARNING This type of installation is not suitable for use on roofs over 10 m high. This type of installation is not suitable for use in cyclonic areas. Flat Roof Frame For use on a flat roof or where the roof pitch is too low. This frame allows the system to be installed at a suitable inclination. Installations instructions are provided in the Rinnai Frame Installation Manual. A Glass Lined 330 litre tank with 3 collectors CANNOT be installed on a flat roof frame Reverse Pitch Frame These comprise of a Close Coupled system flat roof frame and a side/reverse pitch kit. They can be used when the system need to be installed in the reverse direction to the direction the roof is facing. For example, using a reverse pitch frame on a South facing roof enables the system to be oriented to the North. Installations instructions are provided in the Rinnai Frame Installation Manual. A 330 litre tank with 3 collectors CANNOT be installed on a reverse pitch roof frame Side Pitch Frame These comprise of a Close Coupled system flat roof frame and a side/reverse pitch kit. They can be used when the system need to be installed side on to the direction the roof is facing. For example, using a side pitch frame on an East or West facing roof to enables the system to be oriented to the North. Installations instructions are provided in the Rinnai Frame Installation Manual. A 330 litre tank with 3 collectors CANNOT be installed on a side pitch roof frame FRAMED INSTALLATIONS - CYCLONE FRAME Assemble cyclone frame and mount components as described in instructions provide with cyclone frame kit. Rinnai 30 CC OIM

INSTALLATION - ALL SYSTEMS Mounting Collector Rail and Cylinder to Frame Attach the lower mounting rail (provided in the installation kit) to the frame, using the nuts bolts and washers provided in the frame kit. Position the collector(s) on the lower rail For installations with 2 or 3 collectors, join the collectors using the compression unions provided in the installation kit. Fasten the collector(s) to the rails using the collector retainers Position the cylinder above the collector(s) and fasten both cylinder rails to the frame using the nuts, bolts and washers provided in the frame kit. Rinnai 31 CC OIM

INSTALLATION - ALL SYSTEMS 180 LITRE STAINLESS STEEL CYLINDER WITH 1 COLLECTOR - IKS180CCT01C 9 11 21 12 8 22 6 5 1 2 12 10 23 21 24 22 Rinnai 32 CC OIM

INSTALLATION - ALL SYSTEMS 180 LITRE STAINLESS STEEL CYLINDER WITH 1 COLLECTOR - IKS180CCT01C Qty Item / Part Number 1 1 P&TR Valve 11004784 *supplied with cylinder 2 1 T adaptor hot outlet 19001018 *supplied with cylinder 5 1 Reducing Nipple R1 x R ¾ 17201036 6 1 TA Valve 11007711 8 1 Adaptor 16601096 M33 x R ¾ 9 1 Elbow assembly Elbow 21201026 Rp ¾ x G ¾ (Kinco) Kinco Nut 16801018 Kinco Olive 33001011 Qty Item / Part Number 10 1 Elbow assembly 21201038-1 x Elbow G ¾ (Kinco) x G ¾ (Kinco) - 2 x Kinco nuts and olives ¾ 11 1 Copper Pipe 31601772 12 1 Copper Pipe 1765mm 31601775 21 2 Union Compression ¾ 32201709-1 nipple G ¾ - 2 x Kinco nuts and olives ¾ 22 2 Stop end assembly 28801025 23 1 Union ¾ -compression to R - 1 x nipple G ¾ x R ¾ 32201713-1 x Kinco nut and olive ¾ 24 1 Copper Pipe with Insulation 31601750 Qty Item / Part Number - 2 Mounting Rail Small 14201196-4 Collector Mounting Straps 12401012 2 with collector, 2 in kit - 2 Cylinder Mounting Straps 12401013-4 M8 Bolt Washer and Nut Bolt 22601052 (used to bolt collector mounting Washer 17401072 strap to mounting rail) Nut 16801062-4 Collector Retainer 26601706-4 M6 Bolt Washer and Nut Bolt 22601073 (used with collector retainers) Washer 17401073 Nut 16801007-1 Operation and Installation Manual 15401022-1 Warranty Booklet 15401041-1 STC form 15401023 Rinnai 33 CC OIM

INSTALLATION - ALL SYSTEMS 180 LITRE STAINLESS STEEL CYLINDER WITH 2 COLLECTORS - IKSUNICCT23C 10 16 1 2 15 9 8 6 5 16 22 16 10 17 21 21 23 30 21 21 25 16 22 Rinnai 34 CC OIM

INSTALLATION - ALL SYSTEMS 180 LITRE STAINLESS STEEL CYLINDER WITH 2 COLLECTORS - IKSUNICCT23C Qty Item / Part Number 1 1 P&TR Valve 11004784 *supplied with cylinder 2 1 T adaptor hot outlet 19001018 *supplied with cylinder 5 1 Reducing Nipple 17201036 R1 x R ¾ 6 1 TA Valve 11007711 8 1 Adaptor 16601096 M33 x R ¾ 9 1 Elbow assembly Elbow 21201026 Rp ¾ x G ¾ (Kinco) Kinco Nut 16801018 Kinco Olive 3001011 10 2 Elbow assembly 21201038-1 x Elbow G ¾ (Kinco) x G ¾ (Kinco) - 2 x Kinco nuts and olives ¾ Qty Item / Part Number 15 1 Copper Pipe 31601774 (490 long - installer to cut to approx 375) 16 1 Copper Pipe 1945mm 31601778 (1945 long - installer to cut to approx 1915) 21 6 2 not used Union Compression ¾ 32201709-1 nipple G ¾ - 2 x Kinco nuts and olives ¾ 22 2 Stop end assembly 28801025 23 1 Union ¾ -compression to R - 1 x nipple G ¾ x R ¾ 32201713-1 x Kinco nut and olive ¾ 25 1 Copper Pipe with Insulation 31601751 30 1 Copper Pipe with Insulation 31601753 (540 long - installer to cut to approx 437) - 1 Collector Joining Insulation - 3 x insulation, 3 x foil tape 33202053 (1 of each not used) Qty Item / Part Number - 2 Mounting Rail Medium 14201197 2-2 not used Mounting Rail Large 14201198-4 Collector Mounting Straps 12401012 supplied with collectors - 2 Cylinder Mounting Straps 12401013-4 M8 Bolt Washer and Nut Bolt 22601052 (used to bolt collector mounting Washer 17401072 strap to mounting rail) Nut 16801062 12-4 not used Collector Retainer 26601706 12-4 not used M6 Bolt Washer and Nut Bolt 22601073 (used with collector retainers) Washer 17401073 Nut 16801007-1 Operation and Installation Manual 15401022-1 Warranty Booklet 15401041-1 STC form 15401023 Rinnai 35 CC OIM